When Saudi Arabia’s non-oil private sector Purchasing Managers’ Index rose from 53.8 points in August to 55.3 points in September 2026, the initial takeaway was clear: activity is improving.

But behind that figure lies a more complex story.

New orders accelerated, and employment and purchasing increased. At the same time, actual activity grew more slowly, foreign orders weakened for the seventh consecutive month, and cost pressures mounted.

That is why it is important to understand the PMI rather than focus only on its headline figure.

First, 55.3 does not mean 55.3% growth

The Purchasing Managers’ Index is not a measure of growth in GDP or sales.

It is based on monthly business surveys and tracks the direction of several variables, including new orders, output, employment, inventories, and supply chains.

The 50-point mark is the key dividing line:

A reading above 50 signals improvement compared with the previous month, while a reading below 50 signals a decline.

So a reading of 55.3 does not mean the sector grew by 55.3%. It means the survey results point to a clear expansion in business conditions, at a faster pace than in the previous month.

What drove the index higher?

The standout factor in September was new orders.

Companies recorded their fastest growth in new orders since February, supported by improving market conditions and increased spending and customer activity.

This matters because new orders are often the starting point in the business cycle.

When a restaurant gets more reservations, a construction company wins new contracts, or an industrial firm receives more orders, it is not just generating additional revenue right away; it is also preparing for the future.

That was reflected in employment and purchasing.

Companies increased hiring at the fastest pace in seven months and stepped up their purchases of production inputs, suggesting they see the rise in demand as more than a temporary blip and are preparing to handle additional work.

So why did output slow?

This brings us to one of the report’s most striking points.

Despite strong orders, activity growth slowed to a five-month low, and backlogs rose for the first time since May.

This is not necessarily a contradiction.

Imagine a factory receiving new orders faster than it can fulfill them.

Its order book grows, but it needs time to hire more workers, buy materials, and expand its operating capacity.

In that situation, we can see strong demand and slower output at the same time.

Rising backlogs send a similar signal: demand is there, but existing capacity faces some constraints in meeting it.

The domestic economy and exports may tell different stories

One of September’s defining features was that much of the strength in activity came from domestic demand.

By contrast, orders from foreign customers continued to fall for a seventh month, amid supply-chain disruptions and regional tensions.

This shows why the PMI reading alone is not enough to determine what is driving growth.

The non-oil sector may be expanding, but that expansion could rely more heavily on domestic consumption, investment, and projects, while external demand remains weaker.

For analysts, the distinction matters because growth driven by the domestic market brings different risks and opportunities from growth led by exports.

What do prices tell us?

There is another factor we should not overlook: the cost of this growth.

Companies faced higher prices for materials and transport, and raised their selling prices at the second-fastest rate in more than six years.

This shifts the question from:

Is demand strong?

To:

Can companies pass higher costs on to customers without losing that demand?

If they can, they may be able to protect their profit margins.

But if costs rise faster than they can raise prices, activity may expand even as profitability comes under pressure.

The figure is the start of the analysis, not the end

September’s reading of 55.3 points is a positive signal for the non-oil private sector, but it does not mean all its components are moving in the same direction.

Domestic demand is strong, and companies are increasing employment and purchasing, while exports remain weak, costs are high, and confidence about the future has become more cautious.

That is why the real value of the PMI lies not just in the figure at the top of the report.

It lies in the question that follows:

What drove the figure higher?

When we understand orders, employment, output, prices, and exports together, the PMI becomes more than a quick monthly number. It becomes a window into what is happening inside the economy before the full picture emerges in GDP data.